i6 SCIENTIFIC CATALOGUE. 



Rodwell. — THE BIRTH OF CHEMISTRY. By G. F. Ron- 

 well, F.R.A. S., F.C.S. With numerous Illustrations, Crown 

 8vo. 3-y. 6d. 



"Mr. Rodwell lias produced a thoughtful, suggestive, and decidedly 

 readable book." — Quarterly Journal of Science. 



ROSCOC — Works by Henry E. Roscoe, F.R.S., Professor of 

 Chemistry in Owens College, Manchester : — 



LESSONS IN ELEMENTARY CHEMISTRY, INORGANIC 

 AND ORGANIC. With numerous Illustrations and Chiomo- 

 litho of the Solar Spectrum, and of the Alkalies and Alkaline 

 Earths. New Edition. 181110. cloth. 4^. 6d. 

 " We unhesitatingly pronounce it the best of all our elementary 

 treatises on Chemistry.'''' — Medical Times. 



SPECTRUM ANALYSIS. Six Lectures, with Appendices, En- 

 gravings, Maps, and Chromolithographs. Royal 8vo. i\s. 

 A Third Edition of these popular Lectures, containing all the most 

 recent discoveries and several additional illustrations. "In six 

 lectures he has given the history of the discovery and set forth the 

 facts relating to the analysis of light in such a way that any reader 

 of ordinary intelligence and information will be able to understand 

 what ''Spectrum Analysis' 1 is, and what are its claims to rank 

 among the most signal triumphs of science.'''' — Nonconformist. 

 "The lectures themselves furnish a most admirable elementary 

 treatise on the subject, whilst by the insertion in appendices to each 

 lecture of extracts from the most important published memoirs, the 

 author has rendered it equally valuable as a text-book for advanced 

 students. " — Westminster Review. 



Schorlemmer.— A MANUAL OF THE CHEMISTRY OF 

 THE CARBON COMPOUNDS OR ORGANIC CHEMISTRY. 

 By C. Schorlemmer, F.R. S., Lecturer in Organic Chemistry -in 

 Owens College, Manchester. Svo. 14s. 

 "It appears to us to be as complete a manual of the metamorphoses of 



carbon as could be at present produced, and it must prove eminently 



tcseful to the chemical student. '' — Athenoeum. 



Stewart (B.)— LESSONS IN ELEMENTARY PHYSICS. 

 By Balfour Stewart, F.R.S., Professor of Natural Philosophy 

 in Owens College, Manchester. With numerous Illustrations and 

 Chromolithos of the Spectra of the Sun, Stars, and Nebula;. New 

 Edition. l8mo. 45. 6d. 



A description, in an elementary manner, of the most important of 

 those laws which regulate the phenomena of nature. Tlie active 

 a rents, heat, light, electricity, etc., are regarded as varieties of 

 energy, and the work is so arranged that their relation to one 

 another, looked at in this light, and the paramount importance of 

 the laws of energy, are clearly brought out. The volume contains 

 all the necessary illustrations. The Edutcaional Times calls this 



